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Finding the Fourth Proportional to 121,230.37, 167,285.90 and 67,520.37

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Solution

The fourth proportional to 121,230.37, 167,285.90 and 67,520.37 is: 93,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,230.37 : 167,285.90 = 67,520.37 : x
  2. Step 2: Convert to fraction form
    121,230.37/167,285.90 = 67,520.37/x
  3. Step 3: Cross multiply
    121,230.37x = 167,285.90 × 67,520.37
  4. Step 4: Simplify right side
    121,230.37x = 11,295,205,526.18
  5. Step 5: Solve for x
    x = 11,295,205,526.18/121,230.37
  6. Step 6: Final answer
    x = 93,171.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.